NanoPi NEO Air

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Contents

Introduction

NanoPi NEO-AIR-1.jpg
NanoPi NEO-AIR-2.jpg
NanoPi NEO-AIR-3.jpg
  • The NanoPi NEO Air is a 40 x 40mm open source ARM board for makers.It uses an Allwinner H3 Quad Core A7 processor at 1.2GHz. Its pins are compatible with the NanoPi NEO(V 1.2) and its 24-pin header is compatible with Raspberry Pi's GPIO pin headers.
  • The NanoPi NEO AIR features 512MB of 16bit wide DDR3 RAM, 8GB eMMC and one MicroSD slot. It has WiFi & Bluetooth and DVP camera interface(YUV422). The DVP camera interface can support friendlyarm's 5M-pixel camera module
  • It has enhanced power circuit design and better heat dissipation.

Hardware Spec

  • CPU: Allwinner H3, Quad-core Cortex-A7 Up to 1.2GHz
  • RAM: 512MB DDR3 RAM
  • Storage: 8GB eMMC
  • WiFi: 802.11b/g/n
  • Bluetooth: 4.0 dual mode
  • DVP Camera: 0.5mm pitch 24 pin FPC seat
  • MicroUSB: OTG and power input
  • MicroSD Slot x 1
  • Debug Serial Port: 4Pin,2.54mm pitch pin header
  • GPIO1: 2.54mm spacing 24pin,It includes UART,SPI,I2C,GPIO
  • GPIO2: 2.54mm spacing 12pin,It includes USBx2,IR,SPDIF,I2S
  • PCB Size: 40 x 40mm
  • PCB layer: 6
  • Power Supply: DC 5V/2A
  • Working Temperature: -40℃ to 80℃
  • OS/Software: u-boot, UbuntuCore, eflasher
  • Weight: 7.5g(WITHOUT Pin-headers)

Software Features

uboot

  • supports fastboot to update uboot

UbuntuCore 16.04

  • mainline kernel: Linux-4.11.2
  • rpi-monitor: check system status and information
  • npi-config: system configuration utility for setting passwords, language, timezone, hostname, SSH and auto-login,and enabling/disabling i2c, spi, serial and PWM
  • networkmanager: manage network
  • software utility: RPi.GPIO_NP to access GPIO pins
  • welcome window with basic system information and status
  • auto-login with user account "pi" with access to npi-config
  • on first system boot file system will be automatically extended.
  • supports file system auto check and repair on system boot.
  • supports FriendlyElec's NanoHat-PCM5102A
  • supports FriendlyElec's Matrix_-_2.8_SPI_Key_TFT
  • supports file transfer with Bluetooth
  • supports FriendlyElec BakeBit modules
  • supports dynamic frequency scaling and voltage regulation

Ubuntu OLED

  • supports FriendlyElec's OLED module

Eflasher

  • supports flashing OS image to eMMC

Debian for NAS Dock

  • supports FriendlyElec's NAS Dock


Diagram, Layout and Dimension

Layout

NanoPi NEO-AIR Layout
NanoPi NEO Air Pinout
  • GPIO Pin Description
Pin# Name Linux gpio Pin# Name Linux gpio
1 SYS_3.3V 2 VDD_5V
3 I2C0_SDA/GPIOA12 4 VDD_5V
5 I2C0_SCL/GPIOA11 6 GND
7 GPIOG11 203 8 UART1_TX/GPIOG6 198
9 GND 10 UART1_RX/GPIOG7 199
11 UART2_TX/GPIOA0 0 12 GPIOA6 6
13 UART2_RTS/GPIOA2 2 14 GND
15 UART2_CTS/GPIOA3 3 16 UART1_RTS/GPIOG8 200
17 SYS_3.3V 18 UART1_CTS/GPIOG9 201
19 SPI0_MOSI/GPIOC0 64 20 GND
21 SPI0_MISO/GPIOC1 65 22 UART2_RX/GPIOA1 1
23 SPI0_CLK/GPIOC2 66 24 SPI0_CS/GPIOC3 67
  • USB/I2S/IR Pin Description
Pin# Name Description
1 VDD_5V 5V Power Out
2 USB-DP2 USB2 DP Signal
3 USB-DM2 USB2 DM Signal
4 USB-DP3 USB3 DP Signal
5 USB-DM3 USB3 DM Signal
6 GPIOL11/IR-RX GPIOL11 or IR Receive
7 SPDIF-OUT/GPIOA17 GPIOA17 or SPDIF-OUT
8 PCM0_SYNC/I2S0_LRC I2S/PCM Sample Rate Clock/Sync
9 PCM0_CLK/I2S0_BCK I2S/PCM Sample Rate Clock
10 PCM0_DOUT/I2S0_SDOUT I2S/PCM Serial Bata Output
11 PCM0_DIN/I2S0_SDIN I2S/PCM Serial Data Input
12 GND 0V
  • Debug Port(UART0)
Pin# Name
1 GND
2 VDD_5V
3 UART_TXD0/GPIOA4
4 UART_RXD0/GPIOA5/PWM0
  • Audio Port Description
Pin# Name Description
1 LL LINEOUTL, LINE-OUT Left Channel Output
2 LR LINEOUTR, LINE-OUT Right Channel Output
3 MICN MICIN1N, Microphone Negative Input
4 MICP MICIN1P, Microphone Positive Input
  • DVP Camera IF Pin Spec
Pin# Name Description
1, 2 SYS_3.3V 3.3V power output, to camera modules
7,9,13,15,24 GND Gound, 0V
3 I2C2_SCL I2C Clock Signal
4 I2C2_SDA I2C Data Signal
5 GPIOE15 Regular GPIO, control signals output to camera modules
6 GPIOE14 Regular GPIO, control signals output to camera modules
8 MCLK Clock signals output to camera modules
10 NC Not Connected
11 VSYNC vertical synchronization to CPU from camera modules
12 HREF/HSYNC HREF/HSYNC signal to CPU from camera modules
14 PCLK PCLK signal to CPU from camera modules
16-23 Data bit7-0 data signals



Note:
  1. SYS_3.3V: 3.3V power output
  2. VVDD_5V: 5V power input/output. When the external device’s voltage is greater than the MicroUSB's voltage the external device is charging the board otherwise the board powers the external device. The input range is 4.7V ~ 5.6V
  3. All pins are 3.3V, output current is 5mA
  4. For more details refer to the document:NanoPi-NEO-Air-1708-Schematic.pdf

Dimensional Diagram

NanoPi-NEO-AIR-1608-dimensions.png

Get Started

Essentials You Need

Before starting to use your NanoPi NEO AIR get the following items ready

  • NanoPi NEO AIR
  • microSD Card/TFCard: Class 10 or Above, minimum 8GB SDHC
  • microUSB power. A 5V/2A power is a must
  • A Host computer running Ubuntu 16.04 64 bit system

TF Cards We Tested

To make your NanoPi NEO AIR boot and run fast we highly recommend you use a Class10 8GB SDHC TF card or a better one. The following cards are what we used in all our test cases presented here:

  • SanDisk TF 8G Class10 Micro/SD TF card:

SanDisk MicroSD 8G

  • SanDisk TF128G MicroSDXC TF 128G Class10 48MB/S:

SanDisk MicroSD 128G

  • 川宇 8G C10 High Speed class10 micro SD card:

chuanyu MicroSD 8G

Install OS

Download Image Files

  • Get the following files from here download link to download image files and the flashing utility:
Image Files:
nanopi-neo-air_friendlycore-xenial_3.4.y_YYYYMMDD.img.zip FriendlyCore, kernel:Linux-3.4.y
nanopi-neo-air_eflasher_3.4.y_YYYYMMDD.img.zip eflasher image which can be used to Flash OS image files to eMMC, kernel:Linux-3.4.y
nanopi-neo-air_friendlycore-xenial_4.x.y_YYYYMMDD.img.zip FriendlyCore, kernel:Linux-4.x.y
nanopi-neo-air_debian-nas-jessie_4.x.y_YYYYMMDD.img.zip Image File with Support for 1-bay NAS Dock, kernel:Linux-4.x.y
nanopi-neo-air_ubuntu-oled_4.x.y_YYYYMMDD.img.zip Image File with Support for NanoHat OLED, kernel:Linux-4.x.y
nanopi-neo-air_ubuntu-tft_4.x.y_YYYYMMDD.img.zip Image File with Support for Matrix - 2'8 SPI Key TFT, kernel:Linux-4.x.y
nanopi-neo-air_eflasher_4.x.y_YYYYMMDD.img.zip eflasher image which can be used to Flash OS image files to eMMC, kernel:Linux-4.x.y
Flash Utility:
win32diskimager.rar Windows utility. Under Linux users can use "dd"

Comparison of Linux-3.4.y and Linux-4.x.y

  • Our Linux-3.4 is provided by Allwinner. Allwinner has done a lot of customization work which on one hand contains many features and functions but on the other hand incurs overheat issues. If your application needs to use VPU or GPU you need to use the 3.4 kernel based ROM and use a heat sink together with your board.
  • Our Linux-4.14 is based on the mainline kernel. We will keep this kernel with the latest one released by Linus Torvalds. This kernel is stable and doesn't generate heat that much. If your application doesn't need to use VPU or GPU we recommend you to use this kernel.
  • For more details about the Linux-4.14 kernel refer to: Building U-boot and Linux for H5/H3/H2+

Linux

Boot from TF
  • FriendlyCore / Debian / Ubuntu are all based on a same Linux distribution and their installation methods are the same.
  • Extract the Linux image and win32diskimager.rar files. Insert a TF card(at least 8G) into a Windows PC and run the win32diskimager utility as administrator. On the utility's main window select your TF card's drive, the wanted image file and click on "write" to start flashing the TF card.
  • Insert this card into your board's BOOT slot and power on (with a 5V/2A power source). If the PWR LED is on and the STAT LED is blinking this indicates your board has successfully booted.
Boot from eMMC
Flash OS with eflasher Utility
  • For more details about eflasher refer to the wiki link: EFlasher
  • Extract the eflasher Image and win32diskimager.rar files. Insert a TF card(at least 4G) into a Windows PC and run the win32diskimager utility as administrator. On the utility's main window select your TF card's drive, the wanted image file and click on "write" to start flashing the TF card.
  • Insert this card into your board's BOOT slot and power on (with a 5V/2A power source). If the green LED is on and the blue LED is blinking this indicates your board has successfully booted.
  • If your board doesn't support HDMI or no monitor is connected you can select an OS by running the following command:
$ su root
$ eflasher

The password for "root" is "fa".Type a number and enter to select an OS, then type "yes" and enter to start installation:
eflasher-console
After installation is done shutdown the system, take out the TF card, power on your board again and it will boot from eMMC.

  • If you want to flash other OS image to eMMC download the whole directory "images-for-eflasher" in the CD and extract the packages in the directory to the "FRIENDLYARM" section in your SD card.

Work with FriendlyCore

Introduction

FriendlyCore is a light Linux system without X-windows, based on ubuntu core, It uses the Qt-Embedded's GUI and is popular in industrial and enterprise applications.

Besides the regular Ubuntu core's features our FriendlyCore has the following additional features:

  • it supports our LCDs with both capacitive touch and resistive touch(S700, X710, HD702, S430, HD101 and S70)
  • it supports WiFi
  • it supports Ethernet
  • it supports Bluetooth and has been installed with bluez utilities
  • it supports audio playing
  • it supports Qt 5.10.0 EGLES and OpenGL ES1.1/2.0 (Only for S5P4418/S5P6818)

FriendlyCore's User Accounts

  • If your board is connected to an HDMI monitor you need to use a USB mouse and keyboard.
  • If you want to do kernel development you need to use a serial communication board, ie a PSU-ONECOM board, which will

allow you to operate the board via a serial terminal.Here is a setup where we connect a board to a PC via the PSU-ONECOM and you can power on your board from either the PSU-ONECOM or its MicroUSB: PSU-ONECOM-AIR.jpg
You can use a USB to Serial conversion board too.
Make sure you use a 5V/2A power to power your board from its MicroUSB port:
For example, NanoPi-M1:
USB2UART-NEO2.jpg

  • FriendlyCore User Accounts:

Non-root User:

   User Name: pi
   Password: pi

Root:

   User Name: root
   Password: fa

The system is automatically logged in as "pi". You can do "sudo npi-config" to disable auto login.

  • Update packages
$ sudo apt-get update

Configure System with npi-config

The npi-config is a commandline utility which can be used to initialize system configurations such as user password, system language, time zone, Hostname, SSH switch , Auto login and etc. Type the following command to run this utility.

$ sudo npi-config

Here is how npi-config's GUI looks like:
npi-config

Develop Qt Application

Please refer to: How to Build and Install Qt Application for FriendlyELEC Boards

Setup Program to AutoRun

You can setup a program to autorun on system boot with npi-config:

sudo npi-config

Go to Boot Options -> Autologin -> Qt/Embedded, select Enable and reboot.

Extend TF Card's Section

When FriendlyCore is loaded the TF card's section will be automatically extended.You can check the section's size by running the following command:

$ df -h

WiFi

For either an SD WiFi or a USB WiFi you can connect it to your board in the same way. The APXX series WiFi chips are SD WiFi chips. By default FriendlyElec's system supports most popular USB WiFi modules. Here is a list of the USB WiFi modules we tested:

Index Model
1 RTL8188CUS/8188EU 802.11n WLAN Adapter
2 RT2070 Wireless Adapter
3 RT2870/RT3070 Wireless Adapter
4 RTL8192CU Wireless Adapter
5 mi WiFi mt7601

You can use the NetworkManager utility to manage network. You can run "nmcli" in the commandline utility to start it. Here are the commands to start a WiFi connection:

  • Change to root
$ su root
  • Check device list
$ nmcli dev

Note: if the status of a device is "unmanaged" it means that device cannot be accessed by NetworkManager. To make it accessed you need to clear the settings under "/etc/network/interfaces" and reboot your system.

  • Start WiFi
$ nmcli r wifi on
  • Scan Surrounding WiFi Sources
$ nmcli dev wifi
  • Connect to a WiFi Source
$ nmcli dev wifi connect "SSID" password "PASSWORD" ifname wlan0

The "SSID" and "PASSWORD" need to be replaced with your actual SSID and password.If you have multiple WiFi devices you need to specify the one you want to connect to a WiFi source with iface
If a connection succeeds it will be automatically setup on next system reboot.

For more details about NetworkManager refer to this link: Use NetworkManager to configure network settings

If your USB WiFi module doesn't work most likely your system doesn't have its driver. For a Debian system you can get a driver from Debian-WiFi and install it on your system. For a Ubuntu system you can install a driver by running the following commands:

$ apt-get install linux-firmware

In general all WiFi drivers are located at the "/lib/firmware" directory.

Setup Wi-Fi Hotspot

Run the following command to enter AP mode:

$ su root
$ turn-wifi-into-apmode yes

You will be prompted to type your WiFi hotspot's name and password and then proceed with default prompts.
After this is done you will be able to find this hotspot in a neadby cell phone or PC. You can login to this board at 192.168.8.1:

$ ssh root@192.168.8.1

When asked to type a password you can type "fa".

To speed up your ssh login you can turn off your wifi by running the following command:

$ iwconfig wlan0 power off

To switch back to Station mode run the following command:

$ turn-wifi-into-apmode no

Bluetooth

Search for surrounding bluetooth devices by running the following command:

$ su root
$ hciconfig hci0 up
$ hcitool scan

You can run "hciconfig" to check bluetooth's status.

Ethernet Connection

If a board is connected to a network via Ethernet before it is powered on it will automatically obtain an IP with DHCP activated after it is powered up. If you want to set up a static IP refer to: Use NetworkManager to configure network settings

WiringPi and Python Wrapper

Set Audio Device

If your system has multiple audio devices such as HDMI-Audio, 3.5mm audio jack and I2S-Codec you can set system's default audio device by running the following commands.

  • After your board is booted run the following commands to install alsa packages:
$ apt-get update
$ apt-get install libasound2
$ apt-get install alsa-base
$ apt-get install alsa-utils
  • After installation is done you can list all the audio devices by running the following command. Here is a similar list you may see after you run the command:
$ aplay -l
card 0: HDMI
card 1: 3.5mm codec
card 2: I2S codec

"card 0" is HDMI-Audio, "card 1" is 3.5mm audio jack and "card 2" is I2S-Codec. You can set default audio device to HDMI-Audio by changing the "/etc/asound.conf" file as follows:

pcm.!default {
    type hw
    card 0
    device 0
}
 
ctl.!default {
    type hw
    card 0
}

If you change "card 0" to "card 1" the 3.5mm audio jack will be set to the default device.
Copy a .wav file to your board and test it by running the following command:

$ aplay /root/Music/test.wav

You will hear sounds from system's default audio device.
If you are using H3/H5/H2+ series board with mainline kernel, the easier way is using npi-config

Connect to DVP Camera CAM500B

For NanoPi-NEO-Air the CAM500B can work with both Linux-3.4 Kernel and Linux-4.14 Kernel.
The CAM500B camera module is a 5M-pixel camera with DVP interface. For more tech details about it you can refer to Matrix - CAM500B.

connect your board to camera module. Then boot OS, connect your board to a network, log into the board as root and run "mjpg-streamer":

$ cd /root/mjpg-streamer
$ make
$ ./start.sh

You need to change the start.sh script and make sure it uses a correct /dev/videoX node. You can check your camera's node by running the following commands:

$ apt-get install v4l-utils
$ v4l2-ctl -d /dev/video0 -D
Driver Info (not using libv4l2):
        Driver name   : sun6i-video
        Card type     : sun6i-csi
        Bus info      : platform:camera
        Driver version: 4.14.0
	...

The above messages indicate that "/dev/video0" is camera's device node.The mjpg-streamer application is an open source video steam server. After it is successfully started the following messages will be popped up:

 
$ ./start.sh
 i: Using V4L2 device.: /dev/video0
 i: Desired Resolution: 1280 x 720
 i: Frames Per Second.: 30
 i: Format............: YUV
 i: JPEG Quality......: 90
 o: www-folder-path...: ./www/
 o: HTTP TCP port.....: 8080
 o: username:password.: disabled
 o: commands..........: enabled

start.sh runs the following two commands:

export LD_LIBRARY_PATH="$(pwd)"
./mjpg_streamer -i "./input_uvc.so -d /dev/video0 -y 1 -r 1280x720 -f 30 -q 90 -n -fb 0" -o "./output_http.so -w ./www"

Here are some details for mjpg_streamer's major options:
-i: input device. For example "input_uvc.so" means it takes input from a camera;
-o: output device. For example "output_http.so" means the it transmits data via http;
-d: input device's subparameter. It defines a camera's device node;
-y: input device's subparameter. It defines a camera's data format: 1:yuyv, 2:yvyu, 3:uyvy 4:vyuy. If this option isn't defined MJPEG will be set as the data format;
-r: input device's subparameter. It defines a camera's resolution;
-f: input device's subparameter. It defines a camera's fps. But whether this fps is supported depends on its driver;
-q: input device's subparameter. It defines the quality of an image generated by libjpeg soft-encoding;
-n: input device's subparameter. It disables the dynctrls function;
-fb: input device's subparameter. It specifies whether an input image is displayed at "/dev/fbX";
-w: output device's subparameter. It defines a directory to hold web pages;

In our case the board's IP address was 192.168.1.230. We typed 192.168.1.230:8080 in a browser and were able to view the images taken from the camera's. Here is what you would expect to observe:
mjpg-streamer-cam500a
The mjpg-streamer utility uses libjpeg to software-encode steam data. The Linux-4.14 based ROM currently doesn't support hardware-encoding. If you use a H3 boards with Linux-3.4 based ROM you can use the ffmpeg utility to hardware-encode stream data and this can greatly release CPU's resources and speed up encoding:

$ ffmpeg -t 30 -f v4l2 -channel 0 -video_size 1280x720 -i /dev/video0 -pix_fmt nv12 -r 30 \
        -b:v 64k -c:v cedrus264 test.mp4

By default it records a 30-second video. Typing "q" stops video recording. After recording is stopped a test.mp4 file will be generated.

Connect to USB Camera(FA-CAM202)

The FA-CAM202 is a 200M USB camera. You can refer to <Connect DVP Camera (CAM500B) to Board> on how to connect a USB camera to a board.
You need to change the start.sh script and make sure it uses a correct /dev/videoX node. You can check your FA-CAM202's node by running the following commands:

$ apt-get install v4l-utils
$ v4l2-ctl -d /dev/video1 -D
Driver Info (not using libv4l2):
        Driver name   : uvcvideo
        Card type     : HC 3358+2100: HC 3358+2100
        Bus info      : usb-1c1b000.usb-1
	...

Check CPU's Working Temperature

You can get CPU's working temperature by running the following command:

$ cpu_freq
CPU0 online=1 temp=26581 governor=ondemand cur_freq=480000
CPU1 online=1 temp=26581 governor=ondemand cur_freq=480000
CPU2 online=1 temp=26581 governor=ondemand cur_freq=480000
CPU3 online=1 temp=26581 governor=ondemand cur_freq=480000

This message means there are currently four CPUs working. All of their working temperature is 26.5 degree in Celsius and each one's clock is 480MHz.

Test Watchdog

You can test watchdog by running the following commands:

$ cd /root/demo/watchdog/
$ gcc watchdog_demo.c -o watchdog_demo
$ ./watchdog_demo /dev/watchdog0 10
Set timeout: 10 seconds
Get timeout: 10 seconds
System will reboot in 10 second

System will reboot in 10 seconds.

Test Infrared Receiver

Note: Please Check your board if IR receiver exist.
By default the infrared function is disabled you can enable it by using the npi-config utility:

$ npi-config
    6 Advanced Options     Configure advanced settings
        A8 IR              Enable/Disable IR
            ir Enable/Disable ir[enabled]

Reboot your system and test its infrared function by running the following commands:

$ apt-get install ir-keytable
$ echo "+rc-5 +nec +rc-6 +jvc +sony +rc-5-sz +sanyo +sharp +mce_kbd +xmp" > /sys/class/rc/rc0/protocols   # Enable infrared
$ ir-keytable -t
Testing events. Please, press CTRL-C to abort.

"ir-keytable -t" is used to check whether the receiver receives infrared signals. You can use a remote control to send infrared signals to the receiver. If it works you will see similar messages as follows:

1522404275.767215: event type EV_MSC(0x04): scancode = 0xe0e43
1522404275.767215: event type EV_SYN(0x00).
1522404278.911267: event type EV_MSC(0x04): scancode = 0xe0e42
1522404278.911267: event type EV_SYN(0x00).

Read CHIP ID

As for Allwinner H2+/H3/H5/ SoCs each of these CPUs has an internal 16-btye CHIP ID which can be read by running the following commands in the Linux-4.14 kernel:

$ apt-get install bsdmainutils
$ hexdump /sys/bus/nvmem/devices/sunxi-sid0/nvmem 
0000000 8082 0447 0064 04c3 3650 ce0a 1e28 2202
0000010 0002 0000 0000 0000 0000 0000 0000 0000
0000020 0000 0000 0000 0000 0000 0000 0000 0000
0000030 0000 0008 0508 0000 0000 0000 0000 0000
0000040 0000 0000 0000 0000 0000 0000 0000 0000

"8082 0447 0064 04c3 3650 ce0a 1e28 2202" is the 16-byte CHIP ID.

Access GPIO Pins/Wirings with WiringNP

The wiringPi library was initially developed by Gordon Henderson in C. It contains libraries to access GPIO, I2C, SPI, UART, PWM and etc. The wiringPi library contains various libraries, header files and a commandline utility:gpio. The gpio utility can be used to read and write GPIO pins.
FriendlyElec integrated this utility in FriendlyCore system allowing users to easily access GPIO pins. For more details refer to WiringNP WiringNP

Run Qt Demo

Run the following command

$ sudo /opt/QtE-Demo/run.sh

Here is what you expect to observe. This is an open source Qt Demo:
K2-QtE

Make Your Own FriendlyCore

Use Mainline BSP

The NanoPi NEO Air has gotten support for kernel Linux-4.x.y. For more details about how to use mainline u-boot and Linux-4.x.y refer to :Mainline U-boot & Linux

播放和录制音频

NanoPi NEO Air只提供了音频硬件接口(2.54mm排针),引脚的定义如下:

Pin# Name Description
1 LL LINE-OUT Left Channel Output
2 LR LINE-OUT Right Channel Output
3 MN Microphone Negative Input
4 MP Microphone Positive Input

用户需自行转接音频设备,参考下图:
耳麦标注
只有在已外接音频设备的前提下,才可以进行下列步骤测试播放和录制音频。
查看系统里的声卡设备:

$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Codec [H3 Audio Codec], device 0: CDC PCM Codec-0 []
  Subdevices: 1/1
  Subdevice #0: subdevice #0

全志H5和H3这两款CPU内部都自带了同一个codec设备,在主线内核中被命名为[H3 Audio Codec],请根据实际打印信息确定[H3 Audio Codec]对应的card设备。

播放音频:

$ aplay /root/Music/test.wav -D plughw:0

参数-D plughw:0表示使用设备card 0,请根据aplay -l的实际打印信息选择正确的card设备。
录制音频:

$ arecord -f cd -d 5 test.wav

Use Allwinner's BSP

Preparations

Visit this link download link and enter the "sources/nanopi-H3-bsp" directory and download all the source code.Use the 7-zip utility to extract it and a lihee directory and an Android directory will be generated. You can check that by running the following command:

$ ls ./
android lichee

Or you can get it from our github:

$ git clone https://github.com/friendlyarm/h3_lichee.git lichee

Note: "lichee" is the project name named by Allwinner for its CPU's source code which contains the source code of U-boot, Linux kernel and various scripts.

Install Cross Compiler

Visit this site download link, enter the "toolchain" directory, download the cross compiler "gcc-linaro-arm.tar.xz" and copy it to the "lichee/brandy/toochain/" directory.

Compile lichee Source Code

Compilation of the H3's BSP source code must be done under a PC running a 64-bit Linux.The following cases were tested on Ubuntu-14.04 LTS-64bit:

$ sudo apt-get install gawk git gnupg flex bison gperf build-essential \
zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
libgl1-mesa-dev g++-multilib mingw32 tofrodos \
python-markdown libxml2-utils xsltproc zlib1g-dev:i386 u-boot-tools

Enter the lichee directory and un the following command to compile the whole package:

$ cd lichee/fa_tools
$ ./build.sh -b nanopi-air -p linux -t all

After this compilation succeeds a u-boot, Linux kernel and kernel modules will be generated.
Note: the lichee directory contains a cross-compiler we have setup. When the build.sh script runs it will automatically call this cross-compiler.

Type the following command to update the U-boot on your TF card:

$ cd lichee/fa_tools/
$ ./fuse.sh -d /dev/sdX -p linux -t u-boot

Note: you need to replace "/dev/sdx" with the device name in your system.
The boot.img and kernel modules are under the "linux-3.4/output" directory. You can copy the new boot.img file to your TF card's boot partition.

Compile U-boot

You can compile u-boot individually by using the following command:

$ cd lichee/fa_tools/
$ ./build.sh -b nanopi-air -p linux -t u-boot

The gen_script.sh script patches the U-boot with Allwinner features. A U-boot without these features cannot work.
Type the following command to update the U-boot on your TF card:

$ cd lichee/fa_tools/
$ ./fuse.sh -d /dev/sdX -p linux -t u-boot

Note: you need to replace "/dev/sdx" with the device name in your system.

Compile Linux Kernel

If you want to compile the Linux kernel run the following command:

$ cd lichee/fa_tools/
$ ./build.sh -b nanopi-air -p linux -t kernel

After the compilation is done a uImage and its kernel modules will be generated under "linux-3.4/output".

Clean Source Code

$ cd lichee/fa_tools/
$ ./build.sh -b nanopi-air -p linux -t clean


3D Printing Files

NanoPi NEO Air 3D printed housing
NanoPi NEO Air V1.0 3D printing files
[http:// NanoPi NEO Air V1.1 3D printing files]

Other OS Support

DietPi_NanoPiNEO-armv7-(Jessie)

DietPi is an extremely lightweight Debian Jessie OS. Its image file starts at 400MB and nearly 3x lighter than 'Raspbian Lite'.It is pre-installed with DietPi-RAMLog. These features enable users to get the best performance of a device.
The following steps are for reference only. FriendlyElec doesn't provide technical support for them.
Installation guide:

  • Download the image file "DietPi_NanoPiNEO-armv7-(Jessie)" from DietPi_NanoPiNEO-armv7-(Jessie)
  • Extract the package and use the win32diskimager to write it to a MicroSD card under Windows.
  • Insert this MicroSD card to your NanoPi NEO and power up.

Username:root , Password: dietpi

Resources

The following BakeBit modules can work with BakeBit - NanoHat Hub:

List of Version Differences

  • NanoPi NEO Air Version List(Hardware)
version NanoPi NEO V1.0 NanoPi NEO V1.1
Photo
NanoPi-NEO Air-V1.0.jpg
NanoPi-NEO Air-V1.1.jpg
TF Card Slot ① Air V1.1 uses a different card slot compared to V1.0. The card slot's position is moved towards the AP6212 chip by 1mm.
Audio Interface ②Air V1.0's audio interface is populated to four spots as follows
NanoPi NEO-AIR Audio
② Air V1.1's audio interface is populated to four 2.54mm pitch through holes as follows
NanoPi NEO-AIR Audio
LED Color ③ Air v1.0 LED's color: PWR--Green, STAT--Blue ③ Air v1.1 LED's Color: PWR--Red, STAT--Green

Update Log

Sep-28-2016

  • Released English Version

Nov-03-2016

  • Updated Sections 1, 3.1 and 6.2

Dec-13-2016

  • Updated Section 6.2
  • Added Section 6.4

Jan-10-2017

  • Updated Section 5.2

Feb-5-2017

  • Updated Sections 6 and 9
  • Added sections 5.3 and 5.4

May-25-2017

  • Added section 3: software features
  • Added section 8: setup cross compiler for user space programs
  • Updated Sections 6.3: manage wifi with networkmanager

June-4-2017

  • Added section 3.5: support for NAS Dock

June-8-2017

  • Updated section 3.2: added support for RPi.GPIO_NP
  • Added section 6.9: added support for RPi.GPIO_NP

June-18-2017

  • Updated section 7: compiling UbuntuCore
  • Added section 6.9: added support for npi_config

July-8-2017

  • Updated section 3.2

Oct-16-2017

  • Updated sections 4 and 8
  • Added section 11